/*****************************************************************************************
*                                                                                       *
* OpenSpace                                                                             *
*                                                                                       *
* Copyright (c) 2014-2016                                                               *
*                                                                                       *
* Permission is hereby granted, free of charge, to any person obtaining a copy of this  *
* software and associated documentation files (the "Software"), to deal in the Software *
* without restriction, including without limitation the rights to use, copy, modify,    *
* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to    *
* permit persons to whom the Software is furnished to do so, subject to the following   *
* conditions:                                                                           *
*                                                                                       *
* The above copyright notice and this permission notice shall be included in all copies *
* or substantial portions of the Software.                                              *
*                                                                                       *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,   *
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A         *
* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT    *
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF  *
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE  *
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                                         *
****************************************************************************************/

#ifndef __LATLONPATCH_H__
#define __LATLONPATCH_H__

#include <memory>
#include <glm/glm.hpp>

// open space includes
#include <openspace/rendering/renderable.h>

#include <modules/globebrowsing/datastructures/latlon.h>
#include <modules/globebrowsing/rendering/gridgeometry.h>
#include <modules/globebrowsing/rendering/frustrumculler.h>

namespace ghoul {
namespace opengl {
	class ProgramObject;
}
}


namespace openspace {

	class LonLatPatch;
	class Geometry;
	
	using std::shared_ptr;
	using std::unique_ptr;
	using ghoul::opengl::ProgramObject;

	class PatchRenderer {
	public:
		
		PatchRenderer(shared_ptr<Geometry>);
		~PatchRenderer();
		
		virtual void renderPatch(const LatLonPatch& patch, const RenderData& data, double radius) = 0;

		void setFrustrumCuller(std::shared_ptr<FrustrumCuller> fc);
		
	protected:

		unique_ptr<ProgramObject> _programObject;
		shared_ptr<Geometry> _geometry;
		
	};


	//////////////////////////////////////////////////////////////////////////////////////
	//							PATCH RENDERER SUBCLASSES								//
	//////////////////////////////////////////////////////////////////////////////////////

	class LatLonPatchRenderer : public PatchRenderer {
	public:
		LatLonPatchRenderer(shared_ptr<Geometry>);

		virtual void renderPatch(
			const LatLonPatch& patch,
			const RenderData& data, 
			double radius) override;
	};

	class ClipMapPatchRenderer : public PatchRenderer {
	public:
		ClipMapPatchRenderer();

		virtual void renderPatch(
			const LatLonPatch& patch,
			const RenderData& data,
			double radius) override;
	};
}  // namespace openspace

#endif  // __LATLONPATCH_H__